OK,the alternator on my '95 945T is screaming. Squealing noise, seems to be from rear of unit. Replaced it twice-a used one and the known-good one from my '94 940T. Same thing. Noticed the out voltage is low (12.8 to 13.5V) when the screaming is happening. Sometimes,very erratically, the screaming stops, voltage goes up to normal. Swapped out the battery from my car-not the problem. Checked harmonic balancer with timing light-solid.THere is some short, I guess that is dragging it down. But no fuses are blowing,everything works,no wires getting hot. Back of alternator heats up when screaming.Please-suggestions?
Car has 195K,my 940T just turned 228K
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